New 338Canada model is up:
https://338canada.com/bc/
The model seems to suggest that of the 10% former BC United voters, the BCC are likely to absorb 6/10 and the NDP are likely to absorb 4/10.
Current make-or-break ridings for the BCC seem to be North Vancouver-Seymour, Surrey-Cloverdale, North Island, and one-of Vancouver-Point Grey, Port Moody-Burquitlam, Coquitlam-Burke Mountain, and Kooteney Central.
https://338canada.com/bc/districts.htm
Kind of as I suspected.